Home / 7,731.40-10,669.31-4,194.61

Finding the Fourth Proportional to 7,731.40, 10,669.31 and 4,194.61

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Solution

The fourth proportional to 7,731.40, 10,669.31 and 4,194.61 is: 5,788.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,731.40 : 10,669.31 = 4,194.61 : x
  2. Step 2: Convert to fraction form
    7,731.40/10,669.31 = 4,194.61/x
  3. Step 3: Cross multiply
    7,731.40x = 10,669.31 × 4,194.61
  4. Step 4: Simplify right side
    7,731.40x = 44,753,594.42
  5. Step 5: Solve for x
    x = 44,753,594.42/7,731.40
  6. Step 6: Final answer
    x = 5,788.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.